Gas range



Nov. 19, 1929.

s. A. Wl-LDE GAS RANGE Filed Jan. 24, 1927 3 SheetsSh eet I 0 /6 I E ATTEJ TEIR E f a S. A. WlLDE Nov. 19, 1929.

GAS RANGE 3 Sheets-Sheet Filed Jan. 24, 1927 5. A. WILDE Nov. 19, 1929.

GAS RANGE Filed Jan. 24, 1927 3 Sheets-Sheet Patented Nov. 19, 1929 UNITED STATES PATENT OFFICE SAMUEL A. WILDE, OF TAUNTON, MASSACHUSETTS, ASSIGNOR TO GLENWOOD RANGE COMPANY, OF TAUNTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS GAS RANGE Application filed January 24, 1927. Serial No. 162,970.

The invention relates to an improvement in gas ranges and particularly to a construction in which a number of burners are arranged in a closed burner chamber beneath a stove as illustrated for example in United States Patent No. 1,286,493 of December 3, 1918. This patent pertains to the delivery and regulation of the air and gas supplied to the burners for combustion and circulation purposes, and especially pertains to a means for preventing an admission of air to the burner chamber through any burner not in use.

Among the objects of the invention is to improve upon the construction shown'in said patent, especially in point of simplicity and economy of structure from a manufacturing standpoint;

To provide an improved control for the primary and secondary air admitted to the respective burners;

To providle means whereby an adequate,

supply of secondary air may be admitted for combustion and circulation purposes; and

To rovide means whereby burners of common orm or type may be employed.

The invention can'best be seen and understood by reference to the drawings, that portion of the range only being shown necessary for a proper understanding of the invention. Figure 1 is a plan of the range with the stove top removed.

Fig. 2 is a section of the range taken on the wall 9, forming as it does a common bottom line -22 of Fig. 1.

Fig. 3 is a section taken onthe line 3-3 of Fig. 1. I

Fig. 4 is a view partly in section and partly in side elevation of a detail of the valve construction.

Fig. 5 is a section on the line 5-.5 of Fig. 4.

Fig. 6 is aplan of portions of the parts back wall, 5 the front wall, 6 the top wall and 9 the bottom wall. a The top wall 6 forms the top of the range and is provided with the usual openings 7 closed by removable lids 8. The enclosed "structure is separated on the inside bya division wall 12, extending parallel with the top andbottom walls 6 and 9 and spaced from them, into separate chambers, one an upper or burner chamber 13 lying above the division wall and between it and the top wall, and the other an air inlet chamber divided into separate compartments 14, 15, 16 and 17 by partition walls 18 arranged between the division wall and the bottom wall of the structure. The division wall 12 has in it various openings 19 which are located in alignment with the openings 7 in the top wall of the range and correspond in number therewith. As will presentl be explained, the burners are located in the urner chamber in line with the openings through the division wall and below the openings in the top wall, the separate air inlet compartments 14, 15, 16 and 17 corresponding in number with the openings 19 in the division wall, each opening being provided with an individual compartment )elow it, so that air introduced into these respective compartments will pass therefrom upward through the respective ers arranged in alignment with the openings as aforesaid.

With the parts thus arranged the bottom for all of the air inlet compartments, will lie below the respective openings in the division wall and consequently will receive upon it all drip from the burners lying above and in line with these openings. The bottom wall 9 is made a removable wall, being slidably removable from a point outside the range. To this end the'wall 9 or slide rests upon flanges 10 extending inward from the back and side walls of the range so that it may be slidably removed from the front. To permit also of the slidable removable of the wall 9 or slide the partitions 18 forming the various air inlet compartments are attached to the division wall 12. The wall or slide 9 extends outward by the front wall 5 of the range and is providedion'its end outside the range with an edge piece or flange 11 which overlaps the front wall 5 and forms not onlya finish for the outward-projecting end of the Wall or slide 9, but also provides a fingerpiece facilitating its removal. 7

represents the burners, each being provided with a supply pipe 21 and a mixing chamber 22 on the end of the pipe. The burners together with their supply pipes and mixing chambers are of a common type.

For the purpose of providing a mounting for the burners in line with the openings 19' through the division plate out. of the various compartments, and also for enclosing the burners, the division plate is provided for each burner with an upstanding annular flange 23 in the form of a collar. The burner fits within this flange which forms a casing partially enclosing the burner. In order that the burner may fit down within the casing thus provided, the casing has on one side a cut-away portion or slot 24 in it into which the supply pipe of the burner fits. The flange 23 enclosin each of the burners is upwardly extends each by an annular flange extension 25 which extends well up into the burner chamber to a point immediately below the openings 7 in the stove top beneath which the burner is arranged but removed from the top wall 6 or stove top. Each extension 25 is also provided with a serrated top edge 26 so that a cooking utensil inserted through the adjacent opening in the stove .top may rest upon the top edge of the burner casing and still permit the heat from the burner to pass outwardly into the burner chamber.

The supply pipes 21 of the respective burners extend outwardly through the burner chamber 13 and the mixing chambers 22 at their outer ends are located, respectively, in horizontally aligned openings 28 in the front wall or plate 5 of the stove. The mixing chambers on the ends of the supply pipes, like those commonly employed, are provided with openin s 29 by which primary air may enter from t e front to mingle with the gas injected into themixing chambers and form a combustible mixture therewith which passes through the supply pipes to the respective burners. Secondary air admitted for purposes of combustion and also for purposes of circulation is admitted by openings 30 through the front wall or plate 5 of the stove into the various air inlet compartments 14, 15, 16 and 17. The openings 30 lie below and in vertical'alignment with the openin s 28 in the front wall or late 5 within which the mixing chambers of the respective burners are arranged. A v

Gas is supplied to the mixing chambers of the respective burners by way of a gas mani fold 31 common to all and from which extend gas inlet pipes 32 which project into the mixing chambers of the respective burners.

partment of any one of theburners, depend-.

ing upon the amount of opening of the gas cock or that particular burner, and to the end also that admission of primary and secondary air to any burner may be entirely shut off when the gas cock controlling that burner is closed, provision is made as follows The various sets of openings 28,29 and 30 in the front wall or plate 5 of therange through which primary or secondary air is admitted to the respective burners, are provided each set with a hinged door 35 movable to occupy either an open .or closed position with relation to the respective openings. Each of the doors is hinged to the front wall or plate 5 above the openings which it controls. The hinged connection is formed by providing the door withinturned trunnions 36 which turn within a bearing formed in an angular bend 37 in the front'wall or plate 5 and within which'bearing the trunnions are held by means of a clip 38 secured to the front wall or plate by fastenings' 39. The doors 35 are located between the several gas cocks 33 and the front wall or plate 5, the gas inlet pipes 32 passing through 0 enings 40 in the respective doors. Each 0 the doors is also provided on its front side or face with a hook 41' and co-operating with this hook is a cam 42 fixed to thestem 43 of the gas cock and is turned thereby. When the gas cock is opened the cam 42 drawing'along the hook 41 will open the door, the form of the cam being such that the door will be'opened to an extent substantially commensurate with the opening of the cock. When the cock is turned to a' closed position the cam 42 will bear against the door, thereby moving it into a closed position, the door being finally closed when the cock has been turned to a closed position, the door then being maintained in its closed position by the cock through the action of the cam until such time as the cock has again been opened. When the door is in its closed position it covers the opening 28 in the front wall or plate 5 within which the mixing chamber is arranged for the particular urner with which the mixing chamber is associated together also with the openings 29 in the mixing chamber through which primary air is admitted to the burner. The door also closes the opening 30 through which seconda burner head 45 to which gas is admitted from the manifold by way of a gas pipe-46 on the end of which the burner head 1s arranged. The pipe 46 projects from the manifold through the front plate 5 of the stove and throu h a conduit 48 formed by a casing 49 which has closed connection with the front plate 5 and division-plate 12 and from the inner end of which conduit the burner head 45 projects. Air is admitted to the outer end of the conduit by way of openings 47 in the front'plate of the stove and air thus admitted is directed through the conduit 48 to the burner head 45.

When any one of the burners is in operation a relatively large amount of secondary air is admissible to the burner for purposes of combustion and circulation inasmuch as this air is fed to the burnerfrom a relatively large reservoir of air immediately beneath it. In this connection reference is made to the various air inlet compartments 14, 15', 16 and 17. Moreover the air in these compartments is a more or less heated air because the outside airadmitted to these compartments has opportunity to become heated before passing to the burners. Inasmuch'as all secondary air admitted to the air inlet compartments must pass upwardly through the openings in the division plate 12 and accordingly through the casings whichsurround the respective burners, the air will accordingly become intensely heated by the burners and the burner cham ber 13 will at all times be filled with a large volume of hot air. Theair in this chamber is availed of for useful purposes. One way of utilizin g the air is by directing it to an oven chamber usually combined with this type of stove. 50 represents an opening in the side of'the burner chamber controlled by a damper 51 and through which opening hot air may be directed into a flue (not shown) which may connect with an oven chamber (not shown) for the purpose of heating the oven.

In Fig, 7 of the drawing is shown another mode of utilizing the hot air in the burner There is usually associated with.

chamber. ranges having these open burners a vertical back plate bearing a shelf overhanging the stove top. In the present construction the or the cooking utensils may rest on perforated lids 59 fitting in said openings. This arrangement provides not only an auxiliary top cooker but functions also as a shelf when the flue 54 is closed from the burner chamber by the closing-ofthe damper Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States z 1. In a gas range, exterior and interior walls forming a burner chamber and below it an air inlet chamber, said walls including a division wall between the two chambers with openings in said division wall, partitions separating the air inlet chamber into separate compartments, one for each of the openings n said division wall by which secondary air introduced into said compartments may pass therefrom respectively upward through the openings in the division wall into the burner.

chamber, burners within the burner chamber supported by the division wall, said burners corresponding in number with the openings in the division wall and comprising burner heads arranged in line with said openings whereby they may be supplied with secondary air passing through said openings from out of the respective compartments of the air inlet chamber, said burners comprising also supinto the respective compartments of the air inlet chamber by which secondary air may be introduced into said compartm'ents,.others of said openings being adapted and arrangedto receive the mixing chambers of the respective burners and permit of the introduction of primary air into said mixing chambers, means for supplying gas to the/mixing chambers of the respective burners including a gas control for each burner, and means operated by the gas control for'each burner common to the set of openings in the wall of the range for that burner, and through which primary and secondary air is admitted to the burner, for controlling said openings and closing them when the gas is shut off.

2. In a gas range, exterior and interior walls forming a burner chamber and below it an air inlet chamber, said walls-including a division wall between the two chambers with openings in said division wall, partitions separating the air inlet chamber into separate compartments, one for each of the openings in said division wall by which secondary air introduced into said compartments may pass therefrom respectively upward through the openings in the division wall into the burner chamber, burners within the burner chamber supported by the division wall, said burners corresponding in number with the openings in the division wall and comprising burner heads arranged in linewith said openings whereby they may be supplied with secondary air passing the range having in it sets of aligned openings arranged in superposed relation to one another, certain of said openings'leading into the respective compartments of theair inlet chamber by which secondary air may be introduced into said compartments, others of said openings being adapted and arranged to receive the mixing chambers of the respective burners and permit of the introduction of primary-air into said mixing chambers, means for supplying gas to the mixing chambers of the respective burners and comprising in part a gas cock for each burner, swinging doors arranged to control by opening and closing the sets of openings in the wall of the range common to the respective V burners and through which openings primary and secondary air is admitted to the burners, means for'mounting the doors and means whereby the doors may be opened and closed by the opening and closing of the respective sociated.

3. In a gas range, exterior and interior walls forming a burner chamber and below it an air inlet chamber, said walls including gas cocks with which they are asa a division wall between the two chambers with openings in said divisionwall, and a wall forming a bottom to said air inlet chamber, said bottom wall extending through one of the exterior walls of the range and slidably removable from outside the range, means for supporting said bottom sliding-wall, partitions secured to said division wall and cooperating with said bottom wall to separate the air inlet chamber into separate compartments one foreach of the openings in said division Wall by which secondary air introduced into said compartments may pass therefrom respectively upward through the openings in the division wall into the burner chamber, each of said compartments having an opening for admission of secondary air,

burners within the burner chamber corresponding in number with the openings in the division wall and comprising burner heads arranged in line with said openings whereby they may be supplied with secondary air passing through said openings from out of the respective compartments of the air inlet chamber, and means whereby a mixture of primary air and gas may be supplied to the respective burners.

4. In a gas range, exterior and interior walls forming a burner chamber and below it an air inlet chamber, said walls including a division wall between the two chambers with openings in said divison wall, aicol-lar fixed to and upstandng from the division wall around each opening in it, and an extension to each one of said collars fitting thereon, partitions separating the air inlet chamber into separate compartments .one for each of the openings in said division Wall by which secondary air introduced into said compartments may pass therefrom respectively'up- Ward through the openin s in the division wall into the burner cham er, burners with-' in the burner chamber corresponding in numher with the openings in the division wall and comprising burner heads arranged in line with said openings whereby they may be supplied with secondary air passing through said openings from out of the air inlet chamber, each of said burners lying Within an enclosure formed by a collar and extension to the collar around the opening in line with which the burner is arranged, supply pipes each leading to a burner by extension through the oint formed between the collar andits extension Within which the burner is arranged, mixing chambers on the ends of the supply pipes, each mixing chamber having an opening in it for admission of primary air, one exterior'wall of the range having in it openings, certain of the openings in said exterior wall leading into the-respective compartments of the air inlet chamber by which secondary air may be introduced into said compartments, others of said openings in the exterior wall being adapted and arranged to receive the mixing chambers of the respective burners and permit of the introduction of primary air into said mixing chambers, and means for supplying gas to the mixing chambers of the respective burners including a gas control. SAMUEL A. WILDE. 

